diff --git a/.license-header.txt b/.license-header.txt
index b8b57d1..274f837 100644
--- a/.license-header.txt
+++ b/.license-header.txt
@@ -1,4 +1,4 @@
-Copyright 2025 Google LLC
+Copyright 2026 Google LLC
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 146d1a0..fbf476d 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -151,7 +151,7 @@ repos:
     rev: v2.4.1
     hooks:
       - id: codespell
-        args: ['--skip', '*.zip,*.log,*.json', '--ignore-words-list', 'crate,ans,ect,hist,nd']
+        args: ['--skip', '*.zip,*.log,*.json', '--ignore-words-list', 'crate,ans,ect,hist,nd,thw']
         exclude: '^(\.git/|__pycache__|\.egg-info|dist/|build/|docs/_build/)'
 
   # YAML validation specific to our timestamp configs
diff --git a/cloudbuild.yaml b/cloudbuild.yaml
index 972031b..ada6dc7 100644
--- a/cloudbuild.yaml
+++ b/cloudbuild.yaml
@@ -8,4 +8,4 @@ images:
 
 # Option 2: Build from local wheel (uses local changes)
 # To use: gcloud builds submit --config cloudbuild-wheel.yaml
-# See cloudbuild-wheel.yaml for building with local wheel file
\ No newline at end of file
+# See cloudbuild-wheel.yaml for building with local wheel file
diff --git a/docs/conf.py b/docs/conf.py
index f6639ed..1000df1 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/logstory/__init__.py b/src/logstory/__init__.py
index 862d3ce..e3e3ee7 100644
--- a/src/logstory/__init__.py
+++ b/src/logstory/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/logstory/auth.py b/src/logstory/auth.py
index 9b699b7..1ae8524 100644
--- a/src/logstory/auth.py
+++ b/src/logstory/auth.py
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -136,7 +136,7 @@ def get_credentials(self) -> Credentials:
     if self._credentials:
       return self._credentials
 
-    # Priority: service_account_info > credentials_path > secret_manager
+    # Priority: service_account_info then credentials_path then secret_manager
     if self.service_account_info:
       self._credentials = service_account.Credentials.from_service_account_info(
           self.service_account_info, scopes=self.SCOPES
diff --git a/src/logstory/ingestion.py b/src/logstory/ingestion.py
index fa5fde6..a2088f2 100644
--- a/src/logstory/ingestion.py
+++ b/src/logstory/ingestion.py
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -133,7 +133,7 @@ def post_entities(
       self,
       log_type: str,
       entries: list[dict[str, Any]],
-      labels: list[dict[str, str]],
+      labels: list[dict[str, str]],  # noqa: ARG002
   ) -> None:
     """Post entities using legacy API."""
     uri = f"{self.get_base_url()}/v2/entities:batchCreate"
diff --git a/src/logstory/logstory.py b/src/logstory/logstory.py
index e7228fe..9b4ce18 100644
--- a/src/logstory/logstory.py
+++ b/src/logstory/logstory.py
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/logstory/logtypes_entities_timestamps.yaml b/src/logstory/logtypes_entities_timestamps.yaml
index 4f7d6e0..c1f786d 100644
--- a/src/logstory/logtypes_entities_timestamps.yaml
+++ b/src/logstory/logtypes_entities_timestamps.yaml
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/logstory/logtypes_events_timestamps.yaml b/src/logstory/logtypes_events_timestamps.yaml
index 073565d..e2e7408 100644
--- a/src/logstory/logtypes_events_timestamps.yaml
+++ b/src/logstory/logtypes_events_timestamps.yaml
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/logstory/main.py b/src/logstory/main.py
index 00d7816..2719eee 100644
--- a/src/logstory/main.py
+++ b/src/logstory/main.py
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/logstory/usecases/NETWORK_ANALYSIS/__init__.py b/src/logstory/usecases/NETWORK_ANALYSIS/__init__.py
index e69de29..f8cb6d9 100644
--- a/src/logstory/usecases/NETWORK_ANALYSIS/__init__.py
+++ b/src/logstory/usecases/NETWORK_ANALYSIS/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/src/logstory/usecases/__init__.py b/src/logstory/usecases/__init__.py
index e69de29..f8cb6d9 100644
--- a/src/logstory/usecases/__init__.py
+++ b/src/logstory/usecases/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/tests/analyze_all_timestamps.py b/tests/analyze_all_timestamps.py
index 150faff..52ca1c9 100755
--- a/tests/analyze_all_timestamps.py
+++ b/tests/analyze_all_timestamps.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_auth.py b/tests/test_auth.py
index 8943750..3a79d03 100644
--- a/tests/test_auth.py
+++ b/tests/test_auth.py
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_change_map_implementation.py b/tests/test_change_map_implementation.py
index 83a5f76..0b32baf 100644
--- a/tests/test_change_map_implementation.py
+++ b/tests/test_change_map_implementation.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_double_update_fix.py b/tests/test_double_update_fix.py
index 862cde3..7a863f5 100644
--- a/tests/test_double_update_fix.py
+++ b/tests/test_double_update_fix.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_group_only_replacement.py b/tests/test_group_only_replacement.py
index d99fbfc..ce54dd1 100644
--- a/tests/test_group_only_replacement.py
+++ b/tests/test_group_only_replacement.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_logstory.py b/tests/test_logstory.py
index c37e93b..f8cb6d9 100644
--- a/tests/test_logstory.py
+++ b/tests/test_logstory.py
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_main.py b/tests/test_main.py
index 12e8d79..ef36e9b 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_sysmon_pattern_edge_cases.py b/tests/test_sysmon_pattern_edge_cases.py
index 1f92e2c..0dd88be 100644
--- a/tests/test_sysmon_pattern_edge_cases.py
+++ b/tests/test_sysmon_pattern_edge_cases.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_timestamp_patterns.py b/tests/test_timestamp_patterns.py
index ac6584d..3f927ea 100755
--- a/tests/test_timestamp_patterns.py
+++ b/tests/test_timestamp_patterns.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_windows_sysmon_patterns.py b/tests/test_windows_sysmon_patterns.py
index a9aebab..e0978db 100644
--- a/tests/test_windows_sysmon_patterns.py
+++ b/tests/test_windows_sysmon_patterns.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/test_yaml.py b/tests/test_yaml.py
index 5d05e5c..44561aa 100644
--- a/tests/test_yaml.py
+++ b/tests/test_yaml.py
@@ -1,4 +1,4 @@
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -101,9 +101,9 @@ def validate_base_time_format(filepath):
           )
 
         dateformat = timestamp["dateformat"]
-        if dateformat == 'epoch':
+        if dateformat == "epoch":
           format_type = "epoch"
-        elif dateformat == 'windowsfiletime':
+        elif dateformat == "windowsfiletime":
           format_type = "windowsfiletime"
         else:
           format_type = "dateformat"
@@ -191,7 +191,7 @@ def validate_epoch_dateformat_consistency(filepath):
         )
 
       # Validate dateformat values
-      valid_magic_formats = ['epoch', 'windowsfiletime']
+      valid_magic_formats = ["epoch", "windowsfiletime"]
       if dateformat not in valid_magic_formats and not isinstance(dateformat, str):
         raise ValueError(
             f"Entry '{entry_name}' timestamp {i}: dateformat must be a string"
diff --git a/tests/timestamp_extractor.py b/tests/timestamp_extractor.py
index b12061d..cee2cf4 100644
--- a/tests/timestamp_extractor.py
+++ b/tests/timestamp_extractor.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/usecases/generate_usecase_docs.py b/usecases/generate_usecase_docs.py
index 8b32dae..456758c 100644
--- a/usecases/generate_usecase_docs.py
+++ b/usecases/generate_usecase_docs.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2025 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.